求高手指导几道英语选择题...关于定语从句的

求高手指导几道英语选择题...关于定语从句的
Human facial expressions differ from those of animals in the degree ____ they can be controlled on purpose.
A with which B to which C of which D for which
我选的是A,那个介词搞不懂是接谁的是怎么接的...
Jim told us all that ____ he said so at the meeting was really true.
A that B all C what C all that
我选的是D,我觉得是all作主语,后面的定语吖...
A computer is so useful a machine ____ we can use everywhere.
A that B which C as D what
我选的是A,so一定要和as连用吗?
It is hifh time ____ I went back home.
A on which B which C when D /
是不是省略了that呢?
We finally bought several books by Sharkespeare,____ is one.
A which of them B which of whose C of which this D and of them
用排除法得答案还是简单,可是不太懂结构...
第二题，that我还是可以理解，但是为什么不可以是all that？（题目没打错）
第四题，对不起，是high
喂喂喂，刷分也不是这样弄吧...这样乱答还答这么多真的很讨厌呢~